package com.liu.nb.security;

import cn.hutool.json.JSONUtil;
import com.liu.nb.util.Result;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/*
@name:
@description:登录失败处理器
@author: lzy
@title: 天王盖地虎!!!
@time:  2021-08-07 12:36:44
*/
@Component
public class LoginFailureHandler implements AuthenticationFailureHandler {
    @Override
    public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException e) throws IOException, ServletException {
        response.setContentType("application/json;charset=UTF-8");
        ServletOutputStream outputStream=response.getOutputStream();
        String eMsg="";
        if (e.getMessage().equals("Bad credentials")){
            eMsg="用户名或密码错误！";
        }else {
            eMsg=e.getMessage();
        }
        Result result=Result.fail(eMsg);
        outputStream.write(JSONUtil.toJsonStr(result).getBytes("UTF-8"));
        outputStream.flush();
        outputStream.close();
    }
}
